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Lecture Yu Dedkov


15 mei 2007 FWN-Building 5116.0215, Nijenborgh 4, 9747 AG, Groningen
Speaker: Dr. Yu Dedkov
Affiliation: Institut fuer Festkoerperphysik, TU Dresden, Germany
Title: Low-dimensional magnetism: spin-spectroscopy point of view
Date: Tue May 15, 2007
Start: 11.30
Location: FWN-Building 5116.0215
Host: Petra Rudolf
Telephone: +31 50 363 4736


In the present talk we will consider two big topics joined by the title of the presentation, namely, (i) oxide/ferromagnet systems and half-metallicity of thin films, and (ii) influence of dimensionality on magnetic properties of the system. In the first part we will consider example of magnetite as an object for searching of half-metallic properties and AlOx/Fe and MgO/Fe interfaces as widely studied systems that found broad application in nanotechnology. The newly discovered monolayer of graphite or boron nitride will be discussed in the framework of possible application in the devices on the basis of insulator/ferromagnet interface. The second part is mainly devoted to more fundamental objects (that in future can be used in different applications), where effect of reduced dimensionality plays a key role in magnetic properties. We will consider: example of 2D magnetism - ferromagnetic surface of paramagnetic bulk material, YCo2; cluster objects - self-assembled arrays of Mn-clusters on Au(111) surface and observation of γ - α transition in Mn; single magnetic atoms - observation of large orbital magnetic moment of Ce-atoms. In the end we will discuss recent experiments on investigation of electronic structure of monolayer of Mn12 molecular magnets. This now popular molecule can be taken as a prototype element that can be used in future quantum computers.
Laatst gewijzigd:22 oktober 2012 14:31